Device for measuring the yarn reserve and for displaying of yarn breakages for yarn feeder apparatus to textile machines and yarn feeder apparatus with such a device

摘要

the device includes a first layer (a) subject to the pressure of a variable number of turns of the reserve (rtm) and a second layer (b), subject to the request of a number costaccident of coils coincident with the threshold to which the reserve has been used up (rtm).the first and second layer have the same stiffness elastic and are embedded with a boundary at the base of the drum (12) of the device power supply.transducer means (30 and 31) are associated with each blade for detecting the value of the resulting constraints on their leaves and media agents are equipped with computers to process pfor calculating the variation of the distance of the point of application of the resulting constraints on the first lamina (agents), the section of the first interlocking lamina.the change of the number of turns of the reserve (rt) and to emit a signal to measure the residual reserves proportional to the distance (fig. 2).